一、结构及用途 Structure and purpose

该阀主要用于给水系统的水泵出口处，防止介质倒流，水锤及水击现象，该阀兼具电动阀、逆止阀和水锤消除器三种功能，可有效地提高供水系统的安全可靠性，并将缓开、速闭、缓闭消除水锤的技术原理一体化，防止开泵水锤和停泵水锤的产生，只需操作水泵电动启闭，阀门即可按照水泵操作规程自动实现启闭，该阀流量大，压力损失小，密封性能可靠，安装维护、调试检查方便、使用寿命长。

Used on the pump outlet of a water supply system to prevent medium＇s back-flow．water hammer and water shock．combining three functions as an elec-tric valve,check valve and water hammer remove r,capable of effectively raisingsafety and reliability of the water supply system,integrating the technical principle of slow-open,speed valve,slow-close removing water hammer and preventing both pump-starting and pump-stopping water hammers from being formed The gate can automatically carry out open-close upon the operation rules of the water pump just by operating the pump t0 open or close electrically This valve features a big flow and a small pressure loss．reliable sealing performance,easy installation,debugging and maintenance and a long duration．

四、主要外形及连接尺寸 Schematic diagram of installation

注：安装示意图中弹性座封闸阀或蝶阀任选，建议≥ DN350选蝶阀。

Note：Either elastic seat ring sealed gate valve or butterfly valve can be selected in the schematic diagram of installation.Recomended to select the butterfly valve in case of≥DN350.